Shuttle



Jun@ 8 1926. :flA

J. R. P. MRMISCHER SHUTTLE Filed March 19, 1924 2 sheets-sheet 1 @ya i 72a '11 24a S J v m K lf@ Q-@y l En *u @9&2

une 8 ,l926.

J.R.RIRWHSCHER SHUTTLE Filed March 19 1924 msnm@ Patented June 8, 1926.

UNITED STATES PATENT oFEIcE.

\ SHUTTLE.

Application mea maren 19, 1924, serm No. 700,319, and in Germany March 24, 192s.

Thisinvention refers to shuttles, and in particular to shuttles adapted forV use 1n 4 power looms for the wea'ving of wire fabrics,

and it is one of the important objects of my invention to provide means whereby the capacity of the spindle is increased, so that it becomes adapted for the reception of a considerably larger amount of wire and the like than it has been possible to accomplish with shuttles of thiskind heretofore in use, as far as I am aware, and it is a further object of the invention to prevent the serious drawback and inconvenlence of the snapping ofi' and slipping of the wire windings from the spindle, and in further-'pursuance of these and ,other objects means are also provided for the stretching, straightening and smoothening of the length of wire passing from the spindle. Other important objects a-nd advantages of the invention will appear from an inspection of the drawings, and as the specification proceeds. v

In view of the fact thatthe frequencyof the exchanging of the spindles in the yshuttle is in the inverse ratio of its wire "containing capacity, it is obvious that any increase in capacity results in an increase in the output of the loomwhen operating withk strong wires the suggestions in regard to the increase of the wire contending capacity of the shuttle in accordance with the previous art have mainly been based upon the providing of means for producing as large a shed as possible, and on the provision of the ,greatest possible shuttles with correspondingly large spools.

My invention in contradistinction to the previous art provides for the increase of wire containing capacity of the shuttleby arranging for the mounting of the spindle fastening and retaining means in the pointed end of the shuttle which heretofore was only Iutilized for the purpose yof determining the shape of the shuttle, while the space between the two shuttle caster wheels heretodispensed with, the new arrangement ref spindle in the practise of my inventionI may be constructed, so as to constitute a two-sectioned protecting roof for La shuttle caster wheel, such roof being adapted to prevent dirt andforeign bodies from getting. upon the castery wheel and interfering w1th its unimpeded rotation. The increased capac1t for the reception of wire of the spindle is urther assisted by providing,

av spindle of ellipsoidal or blade-shaped or semi-circular cross section, and in accordance therewith I may construct the shuttle itself in such a manner that in cross section its` width exceeds the height of the shuttle. By the increase of the usual width of the shuttle, without necessarily increasing its. height, the wire containing capacity is much augmented without requiring any increase of the opening of the shed.

Aside from the advantage of increasing the wire containing capacity of the s indle 'the provision fof an ellipsoidal or, ladeshaped or semi-circular, cross section of the spindle results in the further advantage that the uncontrollable annoying slipping off of the wire windings from the spindle frequently occurring in the previous constructions of spindles, particularly with the usual bolt shaped spindles, is prevented, inasmuch as the sections of the arcs of the windings corresponding to the great axis of the ellipse set up somefriction against the small arcs of the ellipsoidal cross section of the spindle, which results in retaining the arcs in posi-l tion', so as to produce uniform playing out of the filling wire. This uniformity of feed of weft is further assisted and increased by disposing a suitable number of stretching, straighteningand smoothening rollers, so as to be adjustably and exchangeably mounted in the shuttle, the action of these rollers being facilitated, and further assisted by suitable wire discharging Lmeans comprising the.

combination of a. frame displaceably and adjustably mounted in the wall of the shuttle.

with rollers disposed in an extension of the shuttle.

With these and other 'objects in view and infurther pursuance of my invention means are provided for the purpose of securing the different members of the shuttle in a novel manner against the effects of loosening and relaxing yof parts and of the wire resulting from vibration, shaking, jolting 'and other` causes. Other important objects and advantages will be pointed out in the specification, and will appear therefrom and from the 1 drawings.

The invention will be more fully described with reference to the accompanying drawings, showing byf way of example some kind rof embodiment of the main principles of my invention. v

Inthe drawings Figure lpis. an elevational view` of the shuttle; Figure 2 shows a form of shuttle according to my invention operating without filling Wire stretching means in plan view. Figures fand 4 are respectively side view and plan view of a shuttle provided with the filling wire stretching means. Figures 5 and 6 illustrate on an enlarged scale and in fractional views with parts in section the main .parts of the shuttle according to Figures 1 and 2. In Figures 7 to 12 I have shown detail views of parts of the spindle, Figures 7 and 8 showing the spindle in elevation and side view, respectively. Figure 9 is a section on the 'o'lineA--B of VFigure 8. In Figures 10 and.;

11 I have shown in a conventional diagraml matic manner the head of the spindle with a number of wire windings in elevation and in sectional View respectively.l Figure 12 illustrates a modification, showing a semi-circular lspindle with a` number of wire windings'. Figures 13 and 14 are respectively side zview and top plan view of the stretching, straightenin employed in my lnvention. Figure 15 is a section on the line c-d of Figure 14. Figures 16, 17 and 18 illustrate respectively in.`

plan view, elevation and in sectibnal view the means for producing uniformity of the -fplayirrg out of the filling wire.A

The shuttle comprises a spindle 1 thev foot or end portion 1 of which may constitute a, for instance, gable shaped protecting roof for one of the caster wheels 13 of the shuttle. The caster wheel 13 is thereby protected against contamination and contact with foreign bodies which are liable to drop upon the shuttle` and .will interfere with 'its smooth movement. The protecting cover or and smoothening means The footjor end portion.

the shuttle' constitutes an open joint. .The claw shaped projection 4 is of such height that the spindle 1 on being swung into the dash-andedot position of Figure 5 1s adapted to be supported upon the plane supporting 7 surface 1d of the projection 4 withoutbef coming disengaged from the open joint con-v nectiQn, so that the spindle may be automatically retained inthe`vertical position, whereby its mani ulation lis facilitated. Upon the change o ,position of the spindle from thevertical into the horizontal posi# tion thereof the sliding faces 1S' which branch ofl' laterally from the foot o r spindle extremity 1 slide along a cam surface 1t of` a web portion 1 of the shuttle, the foot with its pro'ection 4 being simultaneously firmly presse a ainst the cross 4pin 2 of the shuttle,

so that t e spindle is secured in position. The .portion 1 is provided with the lateral funnel shaped socket 5 (Figure 6) which 1n combination with the sprin actuated vpin 3,

` 6 of the shuttle constitutes t e locking means for the spindle 1. The spring operated p1n- 3, 6` which is forced b its sprig 6 against the funnel .shaped epression 5 of the spindle end a is supported on the closmg plate 7 o f the shuttle, which is retained vby the screws 25. Against this plate 7 there abuts the rectangularly shaped leg 12l of the caster wheel axle 12 with its bevelled olf` face 14, the portion 12 being.l thereby partially covered by the plate 7, so that the cas ter wheel axle 1s thereby securely locked in A' position. The said ortio n\12a is prefer-v ablyrhoused in the wa l 20 ofthe shuttle.

The spindle 1 may be viven the somewhat Alenticular cross sectiona shape, shown-by way of example in Figures 9, 11 and 12, by which means the spindle, instead .of assuming the shape of a so-called bolt-spool becomes av kind of sword-spindle with one of its axes considerably larger than the other. sword-spindles practically assumes the sectional shape ofthe spool inasmuch as its The elastic wire wound upon suchv 1'107 windings 22 become ellipsoidal, while the case' of bolt-spindles circular windings are produced. Circular windings are spread by the spring action of the wire'upon the untensioning of the same, so that t-he windings j become larger than the\dia1neter of thek bolt and therefore are easily snapped loil`.from the bolt-spindle. The windings 22 (Flgs. 9,

11, 112) of the sword spindle,'how.ever, are

prevented from snapping off the spool, because the force of the s reading wire which tends to cause unwin ing is counteracted bly the friction which is set up upon the s iding of the arc shaped piece of wire 22" corresponding to the great axis ofA the .ellipse over the small arcs 22b of the cross section of the sword-spindle (Figures 'l 11 and 12). The same action takes place in the case of spindles with iembcircular cross section shown in Figures 1, 2, and 6 there is arranged in the direction of the longi* tudinal aXis of the spindle 1 and in front ofV its pointed end-8 the Wire guiding eye 9 secured to the shuttle with roller 9a' over which the Wire passes tothe guide rollers 11 mounted in the inserted member of the side wall of the shuttle, before'it leaves the shut-tlc. y In the modification of construction according to Figures 3 and 4 and Figures 13 to 18 the wire on being unwound'in .the longitudinal direction of the shuttle passes through the eye 25a of the web portion 26 of the shuttle yand `over three or more rollers. Of these rollers .27, `28, 29 of which only three have been shown by way of example the central roller 28 possesses spring acting bearings 34, adapted jfor adjustment by means of screws 32, 33, and by means of which the tension of the filling wire may be varied with accompanying rising or lowering of the roller 28. The rollers 27, 28, 29 are mounted in a common frame 30, so as to admit of being exchanged all at a time against rollers of other diameters or other arrangement, thereby facilitating the weavconditions. After'the guidingof the wire from the spindle 1 either to the rollers 27, 28. 29 of Figures 13, /14, or to the guide -roller 9a. Figure 5. the Iwire end projecting below the roller 29 or `the guide roller 9a has to be raised and has to be guided to the wire es ape of the shuttle, while reversing the direction of the Wire. This reversal is assisted b v providing the cam piece 3l,

/ Figure 13, by mea-ns of which the wire end is` raised,I so that it may be easily passed over the roller 29 orthe guide roller 9, and

conducted to `the wire discharging means,

-Instead of the guide rollers 11 of thc form of construction according to Figures 5J` and 6 a roller 36 is arranged iii/Qthe construction according to Figures 16, 17 which is mounted in a bearing 41 of the shuttle wall 20 longitudinally displaceable by means of slots 37, 38 and pins- 39, 40. The longitudinal displacement. of the bearing, 41

serves for compensating the'change in the ,force required :for the unwinding' of the wire from the spindle 1, and according to its being effected from the left or from the right. The shuttle wall 20 is' provided with an extension 43 for the mounting'of the rollers 44, 45 over which the filling wire is passed upon leaving the shuttle. The dash'- and-dot lines in- Figures 13,17 show the1 guiding ot' the wire. The shuttle wall-20, the adjustable bearing 41 andthe extension 43 enclose a, for example, substantially pyramidal depression, socket or channel, 46 .i

ing' Wire between the roller 36 and its bearing is prevented. By the provision of a plurality of rollers 27, 28 and 29 some of which are spring actuated a perfectly uniform playing olf and pull of the wire with 'corresponding adjustment of lthe rollers is produced, even with hard wires, in which case the wire is simultaneously stretched, the device operating equally' well with softwire, such as brass wire or the like.

In order to avoid loosening of the guide rollers 11, Figures 5 and 6 of the drawing, their stud axles 15, after having been mounted in the insertion piege 10 ot the shuttle wall 20 are provided with a slot 17, substantially of circular segmental shape and being continued through the shuttle Wall 20 and passing through the head of the axial studs 15 to the extent of about half of their cross section, so that in the slot -thus provided the likewise circular segmental locking plate 18 may be securedby means of screw 1.9. In the same manner the other axial studs, thus 'for instance the studs of `the rollers 44, 45, Figure 19, may be locked ,in position. ing of wires of any desired diameter and i The walls 20 of the shuttle may consist of thin material, such vas steel fsheets or the like, Without. impairing its strength, so as to further increase the capacity of the ,shuttle by `the diminishing of the thickness of its walls l l Inasmuch as thespindle according to my invention is particularly designed for the handling of Wire fillers, it is obvious that"` of the spindle, as shown in Figures 11 and Q,

12, in combination twith the `spring acting operatingdtensioning means and the pyramidal recess provided for their reception andthe abutting face 31, causing the wire to be ke t down and away from the walls of the s uttle, and bythe special locking means 17, 18 provided for the tensioning rollers. Inasmuch as, moreover, the springiness of the wire causes a violent pull on the spindle in the axial direction, theI spindle head is 'mounted upon and on both sides of theroller shaft, and, is secured at'both ends against undue longitudinal displacement by the horizontally disposed pivotal connection and by the inclined or cam shaped abutting surfaces lf, lg which will counteract any slipping tendency of the pivotal connecting means. Vhile these and other important features have been provided particularly in view of the utilization of my invention for the making of wire fabrics, it will be obvious that they will produce similai` great advantages when applied to the insertion of fillers of other material, such as threadsv of fibrous material, cane and the like.

It should be understood that'the invention is not limited tothe particular construction, shape and arrangement ofv parts herein described and shown merel by wayof exemplication of the prlnclples' thereof, and that the shape and arrangementof the shuttle body and of the spindle and their parts and accessories may be modified and varied from that herein shown, so as to better adapt the invention to existing conditions and the convenience of the operator, and without deviating from the spirit of my invention,

as pointed out in the claims hereunto appended.

I claim 1. The combina-tion with a shuttle-body and a`spindle mounted therein, of antifrictionally acting Supporting' means on the shuttle-body, a substantially llongitudinally recessed head on said spindle, and pivoting means on the shuttle-body intermediate the supporting means and the adjacent end of the shuttle, and engageable with the recessed head. y j] 2. The combination with a shuttle-body and antifrictionally operating supporting means thereon, of a spindle, a longitudinally recessed lateral end portion on said spindle above said antifi'iction supporting means, and pivoting means on the shuttle body interinediate the supporting means and the adjacent end ofthe shuttle, and engageablel with the recessed spindle, portion.

3. The combination` with a shuttle `body 'and arspindletherefr, of 'a longitudinally recessed laaral portion near one end of the spindle an rigidly secured thereto, pivoting means on'the shuttle body, engageable with the recessed portion, and inter-engageable guiding and unyielding cam surfaces v respectively disposed on the spindle and on l fronting the supportin the shuttle body intermediate their ends. 4. The combination-.with a shuttle body and antifrictionally operating4 supportin means thereon, of a spindle, a 'spindle' hea` at o`ne end thereof above said antifrictionally Yoperating supporting means, a longitudinally recessed part on said head conmeans, ivoting means on the shuttle bo y interme iate the ksupporting means and the end of the shuttle and enga eable with the recessed part of the head, an inter-engaging guiding cam su'rfaces respectively disposed at the rear end `of the spindle head and on theI shuttle-body.

5. The combination with a shuttle body, 'of a spindle, anaxiall extending spindle head thereon, a longitudinally recessed, end'- Wise slotted lateral section on said head,

pivoting means on the shuttle body detachably engageable with the slotted recessed section, inter-engaging guiding cam surfaces, respectively disposed at the inner end of the spindle head and on the shuttle body,

and spring acting locking means on the shuttle body engageable with the spindle head.

9or y which the supporting means are rotat- .y ably mounted an endwise bevelled extension' on said sha and transversely disposed spring acting locking means on the shuttle body engageable with the spindle head and with said bevelled extension.

, 7. The combination with a shuttle body, of a'spindle longitudinally disposed therein', an axially extending, laterally recessed spindle head at one end of the spindle, pivoting means on the shuttle detachably engageable with the laterally recessed spindle head, thread-and-wireguiding means onv the shuttle near the other end of the spindle, an

abutment on the shuttle body spaced from the thread-and-Wire guiding means intermediate the.same and the adjacent end of the-shuttle 8. The combination with a shuttle body, of a spindle codirectionally disposed therein, an axially extending, laterally recessed spindle head at one end of the spindle, pivoting means on the shuttle detachably engageable with the laterally recessed spindle head, ay laterally extended enclosing Wall for thev shuttle body, and a substantially pyrami- ,dally depressed hollow housing portion on said enclosing wall, thread-and-Wire guiding means in said recessed portion, and threadand-Wire guiding means on the shuttle near the other end of the spindle, and an abutmenton the shuttle body spaced from the thread-and-Wirel guiding means and adapted to cause thebendino' upon itself of the filling means fed from thd spindle.-

l 9.. The combination with a shuttle body, of a spindle longitudinally disposedtherein, an axially extendin y headr at one end of the spindle, pivoting laterally disposed 4spindle means on the shuttle, detachably engageable with the laterally recessed spindle head, abutting means respectively disposed at the rear end of the spindle head and on the shuttle, thread-and-Wire guiding and stretching means on the shuttle near the other end of the spindle, means to spring actingly adjust part of said guiding and stretching means and bending means for the filling material fed from the spindle, and opposite the guiding and stretching means.

10. In combination With a substantially flat shuttle body, a substantially flat, broad spindle housed'therein, a longitudinally extending hook-shaped head on said spindle, and means on said shuttle, pivotallyfand deltachably engaging with said hook-shaped head.

11. In combination with a substantially flat shuttle body, a laterally broadened spindle of substantially elliptical cross section codirectionally housed therein, a longitudinally extending hook-shaped head on said spindle, and means on said shuttle, pivotally and detachably engaging with said hookshaped head. 12. In combination with a shuttle having greater Width than height, a laterally broadened, substantially elliptical spindle with iiat bottom, housed inthe shuttle, a longitudinally extending, longitudinally recessed, endvvise hook-,shaped head portion on said s indle, and pivoting means on the shuttle dlotachably engaging the hook shaped head portion.

13. The combination with a shuttle body and freely rotatable antifriction rollers near the ends thereof, of a spindle longitudinally disposed therein, and comprising a spindle head extending above and beyond one of said rollers, substantially hook-shaped pivoting means for the head and respectively disposed on the head and the shuttle body intermediate the roller and the end of the shuttle, and thread-and-wire guiding and tensioning means on the shuttle body between the tail end of the spindle and the other roller.

14. The combination with a shuttle body and a spindle longitudinally disposed therein,I of a spindle head near one end of the shuttle and axially disposed, slotted pivoting means respectively disposed on the spindle head and on the shuttle body, threadand-Wire-guiding and tensioniur means on the shuttle body beyond the tai end of the spindle, laterally disposed guiding and tensioning rollers on the shuttle body, and a substantially semi-circular locking plate on the shuttle body detachably engageable with the laterally disposed rollers.

15. In a loom shuttle for Wire looms and the like the combination with a shuttle body and antifriction rollers in the terminal portions thereof, of a spindle of substantially laterally broadened cross section longitudinally disposed in said shuttle body, a spindle head above said rollers, .inter-engaging pivoting means respectively mounted at the end of the spindle head and on the shuttle body, abutting and sliding cam faces, respectively disposed at the other end of the spindle head and on the shuttle body, spring- Iadjusted wire guiding and tensioning means intermediate the tail end of the spindle and the adjacent shuttle end, and an abutment near said guiding and tensioning means, adapted to bend the Wire upon itself.

16. In a wire loom shuttle a substantially flat, laterally broadened spindle of substantially greater Width than height throughout its length for the reception of the filling Wire, and adapted to cause the springy broader arcuate portions of the Wire to be -retained by frictlon against the lateral narrower arcuate portions and against the sides of the spindle, and mounting means for the spindle.

17. In a Wire loom shuttle a flat spindle of substantially throughout lenticular cross section and mounting means for said spindle at one end thereof.

18. In a Wire loom shuttle a spindle of substantially throughout lenticular cross section, substantially hook-shaped mounting means axially and vertically disposed at one end of the spindle and integral therewith, and means on the shuttle engageable with the mounting means.

In testimony whereof I have aliixed my signature.

JOHANNES RUDOLF PAUL IRMISCHER. 

